Utricularia minor
Tracheophyta
›Magnoliopsida›Lentibulariaceae›Utricularia›Utricularia minor
Ecology
A perennial herb of nutrient-poor, acidic, or sometimes base-rich, shallow water in bog pools and abandoned peat cuttings, at the edges of lakes amongst emergent vegetation, in ditches and small ponds, and in fens. 0-600 m (Haystacks Tarn, Cumberland), and possibly to 685 m in Scotland.
Status
Native
Trends
U. minor is free-flowering, and can be reliably identified on both flowering and vegetative characters. A decline was apparent in the 1962 Atlas, and this has continued in S. and E. England, and perhaps also in S.E. Ireland, due to habitat destruction and eutrophication. It may still be under-recorded in the northern and western parts of its range.
World Distribution
Circumpolar Boreo-temperate element.
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Broad Habitats
Light (Ellenberg): 8
Moisture (Ellenberg): 12
Reaction (Ellenberg): 4
Nitrogen (Ellenberg): 2
Salt Tolerance (Ellenberg): 0
January Mean Temperature (Celsius): 3.6
July Mean Temperature (Celsius): 13.9
Annual Precipitation (mm): 1321
Length: 40
Perennation - primary
Perennial
Life Form - primary
Perennial hydrophyte (perennial water plant)
Woodiness
Herbaceous
Clonality - primary
Detaching ramets above ground (often axillary)
Count of 10km squares in Great Britain: 628
Count of 10km squares in Ireland: 377
Count of 10km squares in the Channel Isles: 1
Atlas Change Index: 0.2
Weighted Changed Factor: 17
Weighted Change Factor Confidence (90%)
36
JNCC Designations
NBNSYS0000004190